Laparon alticeps was an ephippid, or spadefish relative, from the London Clay. Its cranium rises steeply toward the rear and carries a strongly patterned skull roof, suggesting a deep-headed fish rather than a long, slender pelagic form. Living ephippids are laterally compressed marine fishes that browse or take a mixed diet of benthic invertebrates and plant material; a broadly similar near-reef or shelf lifestyle is plausible, but the London Clay skull alone cannot establish diet.

The species is represented chiefly by cranial remains. The high posterior profile, sclerotic ring and coarse striation of the suspensorial bones preserve a distinctive head architecture within the early Eocene acanthomorph fauna.